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Embryonic development.
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Virus Guides Embryo Development After Infecting Primitive Organisms Millions of Years Ago

Millions of years ago, ancient retroviruses infected some of the world’s earliest organisms. Now, the remnants of their genome in modern organism's DNA helps to shape the process of embryonic development.
A deep shaft with workers at the bottom.
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Humans and Neanderthals Coexisted 45,000 Years Ago in Northern Europe

Genetic analysis from bone fragments conclusively shows that Neanderthals and humans coexisted for several thousand years in Northern Europe 45,000 years ago.
A bacteriophage.
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Researchers Are Engineering Viruses To Kill Deadly Pathogens

Researchers have successfully coaxed a deadly pathogen to destroy itself from the inside out. In the new study, researchers modified DNA from a bacteriophage or “phage,” a type of virus that infects and replicates inside of bacteria.
T cells.
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How Do Immune Cells Switch From Being Killers to Forming Memories?

Reversible switch permits infection-fighting blood cells to change course to become long-lived memory cells instead of short-lived killer cells.
Five large red tomatoes on the vine in a brown wood bowl.
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CRISPR-Edited Tomatoes Consume Less Water Without Losing Yield

CRISPR-edited tomatoes have been developed that consume less water without compromising yield, quality or taste.
A woman holding her pregnant bump.
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Genetic and Cellular Changes Pinpointed in Placenta Accreta

A new study may change the way clinicians and scientists understand, diagnose and treat placenta accreta spectrum disorder, a serious condition in which the placenta fails to separate from the uterus at birth.
A collection of bacteria in different sizes, shapes and colors.
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Gut Microbiome Influences Viral Infection Severity

The composition of the gut microbiome can influence how susceptible mice are to respiratory virus infections and how severe infection is.
Antibodies on a particle.
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Human Immune System Evolved by Stealing Necessary Protein

Researchers found that, before the immune system evolutionarily co-opted it, a protein originally belonged to a gene family responsible for directing cells to move to the right location at the right time to address specific functional needs.
A diagram of the brain, superimposed on an outline of a person's head.
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Ancient Brain Area Has Surprising Function

Researchers have discovered that a brain area preserved through evolution, called the superior colliculus, is more crucial for vision than we thought.
Seven birds flying in the sky.
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Researchers Map Genetic Blueprints for 51 Species

Data gathered using software developed by Johns Hopkins University computer scientists will have 'huge implications' for understanding human health and evolution
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